.box {
    overflow: hidden;
    width: 400px;
    height: 1000px;
    background: red;
    position: relative;
    .alert{
        width: 600px;
        background: green;
        // font-size: 200px;
        position: absolute;
        top: 0;
        left: 0;
        label {
            display: flex;
        }
    }
}

